Preparation method of straw self-decomposed compound fertilizer and product

Abstract

The invention discloses a preparation method of a straw self-decomposed compound fertilizer. The method is characterized by comprising steps as follows: mixing and decomposing a straw decomposing agent and a culture material to prepare a decomposed culture material; mixing and granulating straw powder, straw fibers and the decomposed culture material to prepare the granular straw self-decomposed compound fertilizer. The invention further discloses the compound fertilizer prepared with the method. The compound fertilizer is prepared from components as follows: 50-70 parts of the straw powder, 30-40 parts of the straw fibers, 6-16 pars of porous granule carriers, 3-5 parts of the straw decomposing agent, 20-30 parts of a decomposition culture mixed powder and a proper amount of water, the compound fertilizer adopts a granular structure through culture, mixing and granulation, the average diameter of granules ranges from 2 cm to 6 cm, and the moisture content of the granules ranges from 50% to 65%. The invention further discloses an applying method of the fertilizer. The fertilizer mainly adopts plant straw, can be sown into soil after quick granulation, is self-decomposed and free of residues and pollution, can directly improve the soil structure, can utilize waste and has greater social benefit of environmental protection.

Description

technical field [0001] The invention relates to high-efficiency preparation technology of biomass fertilizer, in particular to a preparation method, product and fertilization method of straw self-decomposing compound fertilizer, belonging to the technical field of plant straw resource utilization. Background technique [0002] At present, the world is facing serious problems such as population increase, environmental degradation and food security. People have higher and higher requirements for the demand and safety of agricultural products such as food. However, the extensive use of inorganic fertilizers in agricultural production has made the environment Deterioration, food security, etc. are even more serious. [0003] In agricultural production, inorganic fertilizers occupy most of the market. The shortcomings of the extensive use of this inorganic fertilizer mainly include: destroying the soil, resulting in a decrease in the content of soil organic matter, imbalances in...

AI Technical Summary

Problems solved by technology

The shortcomings of the extensive use of this inorganic fertilizer mainly include: destroying the soil, resulting in a decrease in the content of soil organic matter, imbalances in the proportion of various nutrients, acidification and compaction of the soil, serious damage to the physical and chemical properties of the soil and soil microbial flora, resulting in Its water retention, fertilizer retention, and air permeability are poor, and it is difficult to meet the actual growth needs of crops; crops are highly dependent on chemical fertilizers and pesticides, and the amount of use must be increased year by year, otherwise, crops will grow slowly and pests and diseases will be serious, resulting in reduced production; the agricultural ecological environment will deteriorate After chemical fertilizers are applied to farmland, the actual utilization rate is only 30% on average, and most of them flow into rivers and lakes with farmland drainage or remain in the soil, plants and crops, which not only brings environmental pollution but also endangers the safety and health of human beings and lives. become an obstacle to the sustainable development of agriculture

[0004] The above problems can be improved by applying a large amount of organic fertilizers, but there are many varieties of organic fertilizers in China. Less, can not be used as the main fertilizer, and the effect is single, the price is high

[0005] At present, the utilization rate of various plant straws, especially the straws of crops is not high, and the waste is serious. Straws are simply crushed and then directly returned to the field. Because of their slow natural degradation rate, they cannot better make the soil obtain a higher yield. Fertilizer efficiency and fertility, can not better improve the soil structure